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Maximizing the Detectability of Ocean Alkalinity Enhancement (OAE) While Minimizing Its Exposure Risks: Insights From a Numerical Study [PDF]

Earth's Future
Ocean alkalinity enhancement (OAE) can potentially remove gigatons of CO2 from the atmosphere for durable storage in the ocean. Before implementing OAE at climate‐relevant scales, questions about its safety and verifiability must be addressed ...
Bin Wang, Arnaud Laurent, Qiantong Pei, Jinyu Sheng, Dariia Atamanchuk, Katja Fennel   +5 more
doaj   +4 more sources

The Sensitivity of the Marine Carbonate System to Regional Ocean Alkalinity Enhancement [PDF]

Frontiers in Climate, 2021
Ocean Alkalinity Enhancement (OAE) simultaneously mitigates atmospheric concentrations of CO2 and ocean acidification; however, no previous studies have investigated the response of the non-linear marine carbonate system sensitivity to alkalinity ...
Daniel J. Burt, Daniel J. Burt, Friederike Fröb, Tatiana Ilyina   +3 more
doaj   +5 more sources

Stability of alkalinity in ocean alkalinity enhancement (OAE) approaches – consequences for durability of CO₂ storage [PDF]

Biogeosciences, 2023
According to modelling studies, ocean alkalinity enhancement (OAE) is one of the proposed carbon dioxide removal (CDR) approaches with large potential, with the beneficial side effect of counteracting ocean acidification.
J. Hartmann, N. Suitner, C. Lim, J. Schneider, L. Marín-Samper, J. Arístegui, P. Renforth, J. Taucher, U. Riebesell   +8 more
doaj   +8 more sources

Olivine and dissolved alkalinity trigger different bacterial community shifts in water and oyster gills: insights from a mesocosm experiment [PDF]

Frontiers in Microbiomes
Ocean Alkalinity Enhancement (OAE) is a proposed marine carbon dioxide removal strategy that increases seawater buffering capacity and CO2 uptake through the addition of alkaline substances.
Dominik Antoni, Marco Rump, Gunnar Gerdts   +2 more
doaj   +2 more sources

The effect of ocean alkalinity enhancement on pelagic bacterial communities: focus points derived from a mesocosm experiment [PDF]

Frontiers in Microbiomes
Anthropogenic climate change caused by CO2 emissions forces humanity to reduce the usage of fossil fuels. Along with the task of emission reduction, societies face the task of removing excess CO2 from the atmosphere by using negative emission ...
Dominik Antoni, Antje Wichels, Maarten Boersma, Maarten Boersma, Maarten Boersma, Gunnar Gerdts   +5 more
doaj   +2 more sources

Simulated Impact of Ocean Alkalinity Enhancement on Atmospheric CO2 Removal in the Bering Sea

Earth's Future, 2023
Ocean alkalinity enhancement (OAE) has the potential to mitigate ocean acidification (OA) and induce atmospheric carbon dioxide (CO2) removal (CDR). We evaluate the CDR and OA mitigation impacts of a sustained point‐source OAE of 1.67 × 1010 mol total ...
Hongjie Wang, Darren J. Pilcher, Kelly A. Kearney, Jessica N. Cross, O. Melissa Shugart, Matthew D. Eisaman, Brendan R. Carter   +6 more
doaj   +2 more sources

Alkalinity enhancement with sodium hydroxide in coastal ocean waters [PDF]

Scientific Reports
Carbon Dioxide Removal (CDR) is increasingly recognised as essential for achieving net zero emissions to limit the impacts of climate change. Ocean Alkalinity Enhancement (OAE) presents a potentially scalable marine CDR (mCDR) technique.
Cathryn A. Wynn-Edwards, Wayne D.N. Dillon, John Akl, Craig Neill, Harris J. Anderson, Hui Sheng Lim, Mathieu Mongin, Elizabeth H. Shadwick   +7 more
doaj   +2 more sources

Resilience of the gelatinous zooplankton species Oikopleura dioica to ocean alkalinity enhancement. [PDF]

PLoS ONE
Ocean alkalinity enhancement (OAE) through mineral dissolution is a promising marine carbon dioxide removal strategy because it increases the buffering capacity of seawater and thereby enhances passive storage of atmospheric CO2.
Amrita Bhaumik, Nicolás Sánchez, Silvan Urs Goldenberg, Synne Spjelkavik, María Couret, Ulf Riebesell, Maarten Boersma, Cornelia Jaspers   +7 more
doaj   +2 more sources

Carbon dioxide removal efficiency of iron and steel slag in seawater via ocean alkalinity enhancement

Frontiers in Climate
Ocean alkalinity enhancement (OAE) via the enhanced weathering of alkaline minerals is a promising carbon dioxide removal (CDR) technology. Theoretically, these includes iron and steel slags, although their dissolution kinetics in seawater are unknown ...
Charly A. Moras, Renaud Joannes-Boyau, Lennart T. Bach, Tyler Cyronak, Kai G. Schulz   +4 more
doaj   +3 more sources

Substantial Limitations of Ocean Alkalinity Enhancement in Mitigating the Negative Impacts of Ocean Acidification on Marine Calcifiers [PDF]

Environmental Science & Technology
Nicolas Gruber, Nina Bednaršek, Jens Daniel Müller   +2 more
exaly   +2 more sources